Periodic Table of Elements showing Noble Gases




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Periodic Table of the Elements

Links to Tables showing Periodic Element Groups.

[ Alkali Metals ] [ Alkaline Earth Metals ] [ Blocks ] [ Gases ] [ Halogens ] [ Lanthanides/Actinides ] [ Liquids (stp) ] [ Main Group ] [ Metalloids ] [ Metals ] [ Noble Gases ] [ Non-Metals ] [ Solids (stp) ] [ Transition Metals ]

Noble Gases

The noble gases; helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), radon (Ra) and element 118 (Uuo) occupy the rightmost group of the periodic table. Noble gases were also known as 'inert gases' and 'rare gases'; both these terms are now known not to be strictly correct. Some noble gases have been shown capable of forming compounds mainly with fluorine. Argon and helium can not be considered rare as argon makes up about 1% of our atmosphere and helium is the second most abundant element in the known universe.

The extremely low chemical reactivity of the noble gases is due them having a "complete valence shell". They tend not to gain or lose electrons. The noble gases have high ionisation energies and negligible electro negativities. The noble gases have very weak inter-atomic forces of attraction and very low melting points and boiling points. Noble gases are mono atomic gases under normal conditions, even those with larger atomic masses than many normally solid elements.

Point at or click an element in the periodic table for more information:

       
Group***

Period
1
IA
1A
2
IIA
2A
3
IIIB
3B
4
IVB
4B
5
VB
5B
6
VIB
6B
7
VIIB
7B
8
VIII
8
9
VIII
8
10
VIII
8
11
IB
1B
12
IIB
2B
13
IIIA
3A
14
IVA
4A
15
VA
5A
16
VIA
6A
17
VIIA
7A
18
VIIIA
8A
11
H

1.008
2
He
4.003
23
Li
6.941
4
Be

9.012
5
B
10.81
6
C
12.01
7
N
14.01
8
O
16.00
9
F
19.00
10
Ne
20.18
311
Na

22.99
12
Mg

24.31
13
Al
26.98
14
Si
28.09
15
P
30.97
16
S
32.07
17
Cl
35.45
18
Ar
39.95
419
K
39.10
20
Ca
40.08
21
Sc
44.96
22
Ti
47.88
23
V
50.94

24
Cr
52.00

25
Mn
54.94

26
Fe
55.85
27
Co
58.47
28
Ni
58.69

29
Cu
63.55

30
Zn
65.39
31
Ga
69.72
32
Ge
72.59
33
As
74.92
34
Se
78.96
35
Br
79.90
36
Kr
83.80
537
Rb
85.47
38
Sr
87.62
39
Y
88.91
40
Zr
91.22
41
Nb
92.91
42
Mo
95.94
43
Tc
(98)
44
Ru
101.1
45
Rh
102.9
46
Pd
106.4
47
Ag
107.9
48
Cd
112.4
49
In
114.8
50
Sn
118.7
51
Sb
121.8
52
Te
127.6
53
I
126.9
54
Xe
131.3
655
Cs
132.9
56
Ba
137.3

*
72
Hf
178.5
73
Ta
180.9
74
W
183.9
75
Re
186.2
76
Os
190.2
77
Ir
190.2
78
Pt
195.1
79
Au
197.0
80
Hg
200.5
81
Tl
204.4
82
Pb
207.2
83
Bi
209.0
84
Po
(209)
85
At
(210)
86
Rn
(222)
787
Fr
(223)
88
Ra
(226)

**
104
Rf
(261)
105
Db
(262)
106
Sg
(266)
107
Bh
(264)
108
Hs
(269)
109
Mt
(268)
110
Ds
(281)
111
Rg
(272)
112
Uub
(285)
113
Uut
(284)
114
Uuq
(289)
115
Uup
(288)
116
Uuh
(292)
117
Uus
()
118
Uuo
(294)
 

 

Lanthanide Series*
(Lanthanoid)
57
La
138.9
58
Ce
140.1
59
Pr
140.9
60
Nd
144.2
61
Pm
(145)
62
Sm
150.4
63
Eu
152.0
64
Gd
157.3
65
Tb
158.9
66
Dy
162.5
67
Ho
164.9
68
Er
167.3
69
Tm
168.9
70
Yb
173.0
71
Lu
175.0
Actinide Series**
(Actinoids)
89
Ac
(227)
90
Th
232.0
91
Pa
(231)
92
U
(238)
93
Np
(237)
94
Pu
(244)
95
Am
(243)
96
Cm
(247)
97
Bk
(247)
98
Cf
(251)
99
Es
(252)
100
Fm
(257)
101
Md
(258)
102
No
(259)
103
Lr
(262)

***Groups are by 3 notation conventions.



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